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PROSITE documentation PDOC00487 [for PROSITE entry PS51663]

Stathmin family signatures and stathmin-like (SLD) domain profile





Description

Stathmin [1] (from the Greek 'stathmos' which means relay), is an ubiquitous intracellular protein, present in a variety of phosphorylated forms and which is involved in the regulation of the microtubule (MT) filament system by destabilizing microtubules. It prevents assembly and promotes disassembly of microtubules.

Stathmin belongs to a family that also includes:

  • Stathmin 2 (Protein SCG10); a neuron-specific, membrane-associated protein that accumulates in the growth cones of developing neurons. It is highly similar in its sequence to stathmin, but differs in that it contains an additional N-terminal hydrophobic segment of 32 residues which is probably responsible for its interaction with membranes.
  • Stathmin 3 (SCG10-like protein; SCLIP) [2]; a protein specifically expressed in neurons.
  • Stathmin 4 (Stathmin-like protein B3); which contains an additional N- terminal hydrophobic domain [3].

These proteins possess a stathmin-like domain (SLD) with various N-terminal extensions. SLD is a highly conserved domain of 149 amino acid residues. Structurally, it consists of an N-terminal domain of about 45 residues followed by a 78 residue α-helical domain consisting of a heptad repeat coiled coil structure and a C-terminal domain of 25 residues (see <PDB:1SA0>) [4]. The SLD binds two tubulins arranged longitudinally, head-to-tail, in protofilament-like complexes.

As signatures for proteins of the stathmin family, we selected a conserved decapeptide which ends with the first three residues of the coiled coil domain and a second pattern that corresponds to part of the central region of the coiled coil. We also developed a profile that covers the entire SLD domain.

Last update:

January 2013 / Text revised; profile added.

Technical section

PROSITE methods (with tools and information) covered by this documentation:

STATHMIN_3, PS51663; Stathmin-like (SLD) domain profile  (MATRIX)

STATHMIN_1, PS00563; Stathmin family signature 1  (PATTERN)

STATHMIN_2, PS01041; Stathmin family signature 2  (PATTERN)


References

1AuthorsSobel A.
TitleStathmin: a relay phosphoprotein for multiple signal transduction?
SourceTrends Biochem. Sci. 16:301-305(1991).
PubMed ID1957351

2AuthorsOzon S. Byk T. Sobel A.
TitleSCLIP: a novel SCG10-like protein of the stathmin family expressed in the nervous system.
SourceJ. Neurochem. 70:2386-2396(1998).
PubMed ID9603203

3AuthorsOzon S. Maucuer A. Sobel A.
TitleThe stathmin family -- molecular and biological characterization of novel mammalian proteins expressed in the nervous system.
SourceEur. J. Biochem. 248:794-806(1997).
PubMed ID9342231

4AuthorsRavelli R.B.G. Gigant B. Curmi P.A. Jourdain I. Lachkar S. Sobel A. Knossow M.
TitleInsight into tubulin regulation from a complex with colchicine and a stathmin-like domain.
SourceNature 428:198-202(2004).
PubMed ID15014504
DOI10.1038/nature02393



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